Multiple turntable structure



July 24, 1962 Filed Feb. 3, 1960 u l fiu 74.

H. o. SCHULZ 3,045,508

MULTIPLE TURNTABLE STRUCTURE 3 Sheets-Sheet, 1

Jkmznforr Jrzfi 60524 f July 24, 1962 H. o. SCHULZ MULTIPLE TURNTABLE STRUCTURE Filed Feb. 5, 1960 3 Sheets-Sheet 2 NS %\Nm July 24, 1962 H. o. SCHULZ MULTIPLE TURNTABLE STRUCTURE 5 Sheets-Sheet 3 Filed Feb. I), 1960 United Sttes 3,045,503 MULTWLE TURNTABLE STRUCTURE Hans Otto Schulz, 2227 W. Belmont Ave, Chicago, Iii. Filed Feb. 3, i960, Ser. No. 6,560 8 Claims. (Cl. 74665) The invention relates generally to turntables and the like, and more particularly to a multiple turntable structure.

Turntables of the type here involved are particularly adapted for use in advertising devices and the like wherein, for example, a number of concentric cylinders or drums may be provided with transparent portions through which the inner drums are visible. As registr tion between the various drums is usually involved, it is particularly desirable that the actuating mechanism be positive in action as Well as foolproof and preferably noiseless.

The present invention has among its objects the production of a multiple turntable structure which is exceedingly simple in construction, positive in action and exceptionally durable and foolproof.

Another object of the invention is the production of a multiple turntable having the above advantages in which the structure is flexible in design, readily adaptable to different numbers of turntables, different drums travels, etc.

Many other objects and advantages of the construction herein shown and described will be obvious to those skilled in the art from the disclosure herein given.

In the drawings, wherein like reference characters indicate like or corresponding parts:

FIG. 1 is a top plan view of a multiple turntable actuating structure, the turntables being removed and portions broken away to disclose the details of construction of the actuating mechanism;

FIG. 2 is a side elevational view of the actuating mechanism illustrated in FIG. 1, the turntable illustrated in section;

FIG. 3 is a transverse sectional view taken approximately on the line 3--3 of FIG. 1;

FIG. 4 is a sectional view through the disk actuating latch structures taken approximately on the line 4-4 of FIG. 3; and

FIG. 5 is a sectional View taken approximately on the line 5-5 of FIG. 1.

The invention is illustrated in the drawings in conjunction with a turntable structure embodying three turntables, each of which may carry a drum or other suitable material, the inner drum being adapted to rotate continuously, and the intermediate drum being moved through ninety degrees each time the continuously rotating drum has completed one revolution so that the intermediate drum will have rotated through three hundred and sixty degrees in four revolutions of the inner drum. The outermost drum is adapted to be moved through an arc of ninety degrees upon the completion of each revolution of the intermediate drum so that the outermost drum will be rotated through three hundred and sixty degrees for each four turns of the intermediate drum or for each sixteen turns of the innermost drum. The construction of the present invention is such that by relatively minor changes in location and number of parts, substantially any desired combination of revolutions of the drums may be obtained.

Referring to the drawings, and particularly FIGS. 1 and 2, the reference numeral 1 indicates a base structure having a generally circular bottom portion 2 and an upwardly extending central column 3. The column 3 is provided with a central vertically extending bore 4 in which is rotatably positioned a tube 5 having concentric tubes 6 and 7 associated therewith. Mounted on the tubes 5, 6 and 7 are turntables 8, 9 and 11 which are secured to the upper end of the respective tubes by collars or sleeves 12, 13 and 14. As will be apparent from a reference to FIG. 3, each of the turntables 8, 9 and 11 are adapted to be secured to their respective collar by screws 15 extending through the associated turntable and threaded into the associated sleeve or collar, each of the latter being secured to their associated tube by suitable means such as set screws 16 threaded into the associated collar and bearing upon the cooperable tube.

In like manner, secured to the lower ends of the tubes 5, 6 and 7 are members 18, 19 and 21 which are illustrated as constructed in the form of cylindrically shaped disks of equal size, and secured to their respective tubes 5, 6 and 7 by sleeves or collars 22 and 23 for the disks 18 and 19, and collar 14 for the disk 21, the collars 22 and 23 being secured to their respective tubes by set screws 16. Secured to the disk 18, which forms a driving member for the disks 19 and 21, is a driving gear 24, the latter being secured to the disk 18 by bolts 25 and nuts 26, suitable spacer collars 27 extending between the gear and the disk. -It will be apparent from the above that the tube 5 operatively supports the turntable and disk structure from the column 3 of the base 1, the gear 24 bearing upon a suitable bearing ring or plate 28.

The disk 18, which will hereinafter be referred to as the driving disk, the disks 19 and 21 being generally referred to as the driven disks, is operatively driven by a motor indicated generally by the numeral 29, se cured to the base 1 by suitable means such as screws 31 extending through a mounting bracket 32 on the motor and threaded into the base 1. The motor 29 is illustrated as provided with a drive shaft having a worm 33 which is operatively meshed with a worm wheel 34, mounted on a countershaft 35 supported by a portion of the motor structure, and provided at its upper end with a pinion 36 operatively meshed with the gear 24. The driving disk 18 is thus continuously revolved while the motor 29 is operating.

The driven disks 19 and 21, of which the disc 19 is also a driving disc as it drives the disc 21, are normally latched in stationary positions by a latch mechanism indi-- cated generally by the numeral 37 having a base member 38, illustrated as being in the form of an angle member having a base flange 39 which is secured to the portions 41 of the base 1 by suitable means such as screws 42 passing through the flange 39 and threaded into the portion 41. Carried by the vertically extending portion 43 of the base member 38 is a pair of latch members 44 and 45 which are pivotally connected to the base member 38 by suitable means, such as bolts 46 and nuts 47. The members 44 and 45, each of which are generally L-shaped in configuration, have latching edges 48 and 49 respectively engageable in notches 51 and 52 in the driven disks 19 and 21, each of the disks being illustrated as having four such notches, as illustrated in FIG. 1. The latch members 44 and 45 are biased in a direction to maintain the edges 48 and 49 in the notches 51 and 52, by suitable spring 53 secured at their lower ends to the base member 38 and at their opposite ends to the members 44 and 45. The springs 53 are illustrated as carried by screws 54 threaded into the latch members 44 and 45 and the base member 38., the screws being maintained in fixed relation by lock nuts 55.

The latch members 44 and 45 thus normally maintain the driven disks 19 and 21 in stationary relationship in any one of four positions, each as determined by the notches 51 and 52, the disks being releasable by pivotal movement of the associated latch member in a counter-' clockwise direction as viewed in FIG. 2, such pivotal movement withdrawing the end of the latch member out of the associated notch 48 or 49 as the case may be.

Carried by the disk 18 is a movable latch member or pawl indicated generally by the numeral 56, the latter being pivotally mounted on a horizontally extending axis by means of a pin 57 carried by the upright 58, of a bracket 59, the latter being suitably secured to the plate 18 by suitable means such as screws 61 and nuts 62 extending through the oppositely disposed flange portions of the brackets.

As illustrated in FIG. 4, the plate 18 is provided with an opening 63 therein through which the lower portion 64 of the pawl 56 extends, the latter being generally T- shaped, and having an upper portion 65. As illustrated in FIGS. 2 and 3, the pawl 56 is provided at the portion 64 with a roller 66 which is freely rotatable on suitable means such as a shouldered mounting screw 67.

Each of the driven disks 19 and 21 is provided with four rectangularly shaped openings 68 and 69, respectively, illustrated as being similarly positioned in quadrants of the associated disk. Carried by the disk 19 is a movable latch member or pawl indicated generally by the numeral 71 supported on a horizontal axis by means of a pin 57 carried by the upright 58' of the bracket 59, corresponding to the bracket which supports the pawl 56. As illustrated in FIG. 4, the free end of the pawl 71 is generally keystone shaped having an abutment 72 which may engage the end edge of one of the openings 69 in the disk 21 when the pawl 71 is in its maximum upward position as illustrated in FIG. 4, such upward movement being adapted to be achieved by engagement of the lower portion 73 of the pawl 71 with the portion 65 of the pawl 56, all as illustrated in FIGS. 3 and 4. Likewise, when the pawl 56 is in the upper position as illustrated in FIGS. 3 and 4, the edge 74 of the portion 65 of the pawl 56 will engage the adjacent end edge of one of the openings 68 in the plate 19, such engagement being operative to impart a rotational driving torque to the plate 19 and the latter in turn being operative through the pawl 71 to provide a rotational driving torque to the plate 21,

The latch member or pawl 56 is adapted to be actuated by a plate 75 positioned to engage the roller 66 of the pawl and thereby cam the pawl upwardly until the roller rides on the plate as illustrated in FIG. 4, the normal position of the pawl being as illustrated in FIG. 2, the roller 66 extending downwardly into the plane of the plate 75. The latter is illustrated as being supported from the base 1 by means of a pair of tubular members or columns 76 which extend between the cam plate 75 and a lower plate 77, the members 76 being secured therebetween by screws 78 which extend through the respective members and are threaded into the lower plate 77, the latter in turn being secured to the base 1 by suitable means such as screws 79 extending through the plate '77 and threaded into the base.

Rotational movement of the disks 19 and 21 is frictionally snubbed by a block 81 having a suitable friction surface 82 engageable with the edges of the disks 19 and 21, as clearly illustrated in FIGS. 1 and 5, the block 81 being supported by a hollow standard 83 of generally rectangular cross section which is carried by a plate 84 secured to the base 1 by suitable means such as screws 85, the standard 83 being illustrated as being welded at its lower end to the plate 84 as indicated at 86. The upright 83 is operatively connected to the block 8 1 by a pair of studs 87 threaded into the block 81 and extending through pairs of aligned apertures in the upright 83, the block 81 being urged toward the disks 19 and 21 by a compression spring 88 encircling the studs 87 and positioned between the upright 83 and the block 81.

The latch members 44 and 45 are adapted to be released by means carried by the driving disk 18, such means being illustrated as comprising a cam plate 89 secured to the plate 18 by screws 91 passing through the plate 89 and threaded into the driving disk 18, the cam 89 having a cam surface 92 adapted to engage the latch member 44 and pivot the same counterclockwise as viewed in FIG. 2, or clockwise as viewed in FIG. 3, thereby pivoting the latch member sufficiently to disengage the same from the adjacent notch 51 of the disk 19.

When the latch member 45 is to be disengaged from the disk 21, this may be suitably accomplished by the action of the latch member 44 by providing an interlock between the latch member 44 and the latch member 45. The means for accomplishing this action is illustrated in FIGS. 1, 2 and 3, and comprises a block 93 mounted by means of screws 94 to the upper face of the disk 19, the block having a longitudinally extending groove or channel 95 therein in which is positioned a slide member 96, the latter being retained in operative position in the channel 95 by suitable means such as a screw 97 and washer 98, the screw extending through a slot 99 in the slide 96 and threaded into the block 93. The slide is normally retained in a retracted position by a tension spring 101 having one.

end extending through an aperture 102 in the slide and its opposite end anchored to a screw 103 threaded into the disk 19 and locked in position by a lock nut 104, such retracted position being illustrated in dotted lines in FIG. 2. The slide 96 is provided at its free outer end with a downwardly extending flange or projection 185, which as illustrated in dotted lines in FIG. 2 is of a size to freely pass between the adjacent edge 106 of the latch member 45 and an upwardly extending hook portion 107 formed on the adjacent end of the latch member 44, so that when the latter latch member is actuated as illustrated in FIG. 3, the hook portion 107 thereof will engage the projection on the slide 96 and the projection in turn will engage the latch member 45 so that both latch members will be rotated into a released position by the action of the cam 89.

The operation of the device is as follows:

Assuming that the disks 19 and 21 are in the positions illustrated in FIGS. 1 and 2, and assuming that the driving disk 18 has made almost one complete revolution, with the disks 19 and 21 being locked in position by the latch members 44 and 45, as the cam 92 approaches the latch member 44, the pawl 56 also carried by the driving disk 18 will be approaching the plate 75 as shown in FIGS. 1 and 2, which illustrate the roller 66 as being in a position immediately preceding its engagement with the adjacent edge of the plate 75. Referring to FIG. 1, it will be noted that in this position the portion 65 of the pawl 56 is positioned directly below the opening 68 in the disk 19, only a portion of the opening 68 being illustrated in solid lines in view of the breaking away of the disk to show the details therebelow. The normal position of such opening 68 is therefore illustrated in broken lines.

As the disk 18 continues to revolve, the roller 66 will ride up on the plate 75 to a position illustrated in FIG. 4, at which time the abutment or shoulder 74 of the portion 65 of the pawl will engage the adjacent edge of the opening 68. Simultaneously therewith the cam 92 will have engaged the latch arm 44, as illustrated in FIG. 3, rotating the latter clockwise as viewed in FIG. 3 and disengaging the same from the disk 19, so that as the pawl 56 engages the disk 19, the latter is free to be rotatably driven thereby and the movement of the disks 18 and 19 as a unit will continue until the roller 66 reaches the opposite end of the plate 75, at which point the roller will disengage from the plate, dropping the pawl 56 out of engagement with the disk 19. During this motion the latch member 44, upon disengagement of the cam 92 therewith, has returned under the action of the spring 53 into engagement with the smooth edge of the disk 19, the particular notch 51 having been moved out of alignment therewith so that as the disk 19 continues to rotate the edge of the latch member will bear on the free edge of the disk until the next notch 51 is reached, at which point the latch member will drop into the same and prevent further rotation of the disk. The plate 75 is so proportioned as to length that the pawl 56 will disengage from the plate 19 at the same instant the latch arm 44 drops into the adjacent notch 51.

Such action will continue with respect to the plate 19 on each rotation of the driving disk 18 and at the end of each complete rotation of the latter, the disk 19 will be advanced through ninety degrees rotation.

When the disk 19 is rotated to a position such as illustrated in FIG. 3, the block 93 will be positioned in radial alignment with the latch members 44 and 45 and the slide 96 will be in its inner position as illustrated in dotted lines in FIG. 2, the projection 105 thereof positioned between the two latch members, the latter remaining in disklocking position. As the driving disk 18 approaches the completion of its next revolution, the cam 89 will cam the latch arm 44 outwardly to the right as viewed in FIG. 3, but as the projection 105 is positioned between the hook portion 107 of the latch arm 44 and the edge 1% of the latch arm 45, the latch arm 44 acting through the projection 105 will also pivot the latch arm 45 out of engagement with the disk 21.

At the same time that the block '93 was rotated by the disk 19 in the position illustrated in FIG. 3, the pawl 71 will be positioned adjacent the pawl 56 as the latter approaches the plate 75, so that when the latter pawl is cam-med upwardly by the plate 75, the portion 65 of the pawl 56 will engage the portion 73 of the pawl 71, moving the latter upwardly to the portion illustrated in FIG. 4. In this position of the parts, the pawl 56 will engage the disk 19 to rotate it with the disk 18 and at the same time the pawl 71 will operatively connect the disk 19 with the disk 21 through engagement of the shoulder 72, formed on the pawl 71, with the adjacent edge of the opening 69 in the plate 21. Consequently, as the disk 18 continues to rotate, the disks 19 and 21 will be moved therewith through a sector of ninety degrees, and during this action, following the disengagement of the cam plate 92 with the latch arm 44, the latter is free to engage the edge of the disk 19 and likewise as the 'block 93 is rotated with the disk 19 out of engagement with the latch arm 45, the latter will be urged into engagement with the free edge of the disk 21. As the roller 66 drops off of the plate 75, the notches 51 and 52 in the plates 19 and 21 will come into alignment with the latch members 44 and 45 which will drop into their respective notches and lock the disks in their advanced positions.

Thus as the disk 18 approaches the end of each revolution, it will pick up and drive the disk 19, carrying it one quarter revolution. As the disk '19 completes three quarters of a revolution, it will be in position to pick up and drive the disk 21 upon the next revolution of the driving disk 18, whereby the disk 21 is carried through one quarter revolution.

. Thus assuming, for example, that the turntables 8, 9, and 11 are provided with drums 108, 109 and 111, respectively, the latter two drums being provided with openings every ninety degrees, the mechanism will rotate the drum 108 continuously and upon each revolution of the latter, the drum 109 will be rotated ninety degrees to position a different window in operative position with respect to that in the drum 111, and upon rotation of the drum 109 the drum 111 will be rotated through ninety degrees to reposition the windows therein, following which the cycles will be completed.

It will be noted that while I have disclosed the invention in connection with three turntables and three drums, obviously the invention may be applied to any desired number of rotatable elements and the cycling of the mechanism may be readily varied by providing a greater or lesser number of openings in the driven disks, increasing the number of pawls between the members, and, if necessary, varying the proportions of the cam plate 75. Thus for example, the turntables could be rotated through different 6 sectors and could be shifted more than once during each rotation of the member which controls its movement.

It will be appreciated that as the disks 19 and 20 are held in position by the friction block 81, upon release of the latch members 44 and 45 they will remain stationary until they are picked up by the associated pawls. The timing is not extremely critical in the structure, the cam plate 92 readily being constructed to release the latch members just prior to the engagement of the pawl or pawls, and the positioning of the leading edge of the plate 75 is not critical as the slots 68 and 69 are of suificient length to permit the upward movement and proper positioning of the pawl or pawls prior to engagement thereof with the disks. While reasonable adjustments between the trailing edge of the cam plate 75 and the roller 66 is required, the adjustment is not extremely critical as the pawl 56 will tend to back away slightly from the "disk with which it is engaged, enabling easy adjustment of the plate 75. It will also be noted in view of the non-critical aspects of the engagement of the roller 66 with the plate 75, some adjustment of the trailing edge of the plate 75, if necessary, can be made without materially affecting the overall adjustment at the leading edge of the plate.

It will be noted from the above disclosure that I have provided a relatively simple yet foolproof multiple turn table mechanism which may be embodied in various forms for rotating a plurality of turntables or the like in a predetermined sequence or cycle of operation. It will also be noted that the construction is such that all of the parts may be constructed in an extremely rugged form to provide exceptional durability in the finished mechanism, and provides a structure which is capable of actuating the turntables, even when the latter may carry relatively heavy loads which would break down friction drives and the like, as the present mechanism provided a positive actuation of the turntables under all conditions.

Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence I do not wish to be understood as limiting myself to the exact form, construction, arrangement and combination of parts herein shown and described.

What I claim as new and desire to secure by Letters Patent is:

1. In a multiple turntable structure, the combination of a base structure, a plurality of rotatable members operatively supported by said base structure and disposed on a common axis in axial spaced relation, the members being disposed adjacent one another, means operatively connected to one of said members for rotatably driving the same, retaining means operatively related to another member for normally retaining the same stationary, means associated with said driven member operative to selectively release said retaining means, and means associated with said driven member opeartively related to said second mentioned member for applying a rotational torque thereto upon release of said retaining means.

2. In a multiple turntable structure, the combination of a base structure, a plurality of movable members opera-' tively supported by said base structure, certain of said members being driving members and certain of said members being driven members, each of the latter being operatively connected to a respective driving member, the driving members being disposed adjacent one another, power means operatively connected to one of said driving members for moving the same, retaining means operatively related to the driven members for normally retaining the same stationary, means associated with said power-driven member operative to selectively release said retaining means, and means associated with said power-driven member operatively related to another of said members for transmitting movement thereto upon release of said retaining means.

3. In a multiple turntable structure, the combination of a base structure, a plurality of rotatable members operatively supported by said base structure and disposed on a common axis in axial spaced relation, certain of said members being driving members and certain of said members being driven members, each of the latter being operatively connected to a respective driving member, the driving members being disposed adjacent one another, power means operatively connected to one of said driving members for rotating the same, retaining means operatively related to the driven members for normally retaining the same stationary, means associated with said power-driven member operative to selectively release said retaining means, and means associated with said powerdriven member operatively related to another of said members for applying a rotational torque thereto upon release of said retaining means.

4. In a multiple turntable structure, the combination of a base structure, a plurality of discs rotatably supported by said base structure, power means carried by said base structure operatively connected to the lowermost disc for rotating the latter, pivotal latch means carried by said base structure for each disc other than the lowermost disc, means carried by the latter for releasing the latch means associated with the adjacent disc, means carried by the last mentioned disc for effecting release of the latch means of the next successive disc, a pawl member carried by said lowermost disc operative to selectively engage the next adjacent disc when the latch means associated therewith is released, to rotate the last mentioned disc with the lowermost disc, means associated with the base structure for moving said pawl member into and out of disc-engaging position, and a pawl member carried by said next adjacent disc engageable with the next successive disc for rotating the same therewith when the pivotal latch means associated with said next successive disc is released, said second-mentioned pawl member means being actuatable by the pawl member carried by said lowermost disc.

5. In a multiple turntable structure, the combination of'a base structure, a plurality of concentric tube members rotatably supported by said base structure, a plurality of discs, each secured to the lower end of an associated tube, the lowermost disc being rigidly connected to the innermost tube andthe top disc to the outermost tube, the innermost tube being rotatably journaled in the base structure, power means carried by the latter, operatively connected to the lowermost disc for rotating the latter, respectivedriven members carried by the upper ends of the respective tubes, latch means carried by said base structure for each disc other than the lowermost disc, means carried by the latter for releasing the latch means associated with the adjacent disc, means carried by the last mentioned discv for effecting release of the latch means of the next successive disc, means carried by said lowermost disc operative to selectively engage the next adjacent disc when the latch means associated therewith is released, to rotate the last mentioned disc with the lowermost disc, means for moving said last-mentioned means on said lowermost disc into and out of disc-engaging position, and means carried by said next adjacent disc engageable with the next successive disc for rotating the same therewith when the pivotal latch means associated with said next successive discais released.

6'. In a multiple turntable structure, the combination of a base structure, a plurality of concentric tube members rotatably supported by said base structure, a plurality of discs, each secured to the lower end of an associated tube, the lowermost disc being rigidly connected to the innermost tube and the top disc to the outermost tube, the innermost tube being rotatably journaled in the base structure, power means carried by the latter, gear means operatively connecting the power means and lowermost disc for rotating the latter, respective driven members carried by the upper ends of the respective tubes,

pivotal latch means carried by said base structure for each disc other than the lowermost disc, means carried by the latter for releasing the latch means associated with the adjacent disc, means carried by the last mentioned disc for effecting release of the latch meansof the next successive disc, a pawl member carried by said lowermost disc operative to selectively engage the next adjacent disc when the latch means associated therewith is released, to rotate the last mentioned disc with the lowermost disc, means associated with the base structure for moving said pawl member into and out of disc-engaging position, a pawl member carried by said next adjacent disc engageable with the next successive disc for rotating the same therewith when the pivotal latch means associated with said next successive disc is released, said second-mentioned pawl member being actuatable by the pawl member carried by said lowermost disc, and frictional means engageable with the respective driving discs, other than the lowermost disc, to restrict undesired movement of such discs.

7. In a multiple turntable structure, the combination of a base structure, a plurality of concentric tube members rotatably supported by said base structure, a plurality of discs, each secured to the lower end of an associated tube, the lowermost disc being rigidly connected to the innermost tube and the top disc to the outermost tube, the innermost tube being rotatably journaled in the base structure, power means carried by the latter, gear means operatively connecting the power means and lowermost disc for rotating the latter, respective driving members carried by the upper ends of the respective tubes, a pivotal latch member carried by said base structure for each disc other than the lowermost disc, means carried by the latter for releasing the latch member associated with the adjacent disc, means carried by the last mentioned disc cooperable with the latch member engageable with the succeeding disc adjacent thereto for releasing the latter, said adjacent disc and the succeeding disc adjacent thereto having a plurality of openings therein, a pawl member carried by said lowermost disc operative to selectively enter the openings in and engage the adjacent disc when the latch means associated therewith is released, to rotate the last mentioned disc with the lowermost disc, a cam plate associated with the base structure for moving said pawl member into and out of disc-engaging positions, a pawl member carried by said adjacent disc operative to selectively enter the openings in the succeeding adjacent disc for rotating the same therewith when the pivotal latch means associated with said succeeding adjacent disc is released, said second-mentioned pawl member being actuatable by the pawl member carried by said lowermost disc, and frictional means engageable-with the respective driving discs, other than the lowermost to restrict undesired movement of such discs.

8. A multiple turntable structure as defined in claim 7, wherein said means for releasing the latch member carried by said succeeding adacent disc comprises a radially movable member carried by the disc adjacent said lowermost disc, and having a portion movable with such disc carrying the same to position such portion between the respective latch members whereby actuation of the latch member associated with said last mentioned disc will move said portion into engagement with the latch member associated with said succeeding adjacent disc to move the last mentioned latch member into a disc releasing position.

References Cited in the file of this patent UNITED STATES PATENTS 1,415,300 Borofsky May 9, 1922' 2,156,030 Rufus Apr. 25, 1939 2,496,454 Elliott Feb. 7, 1950 

